DeleteMachineActionCallback.java

/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2013, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.redhat.vmtruckloader.vmware.action;

import java.rmi.RemoteException;

import org.redhat.vmtruckloader.vmware.VMWareManagedObjectUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.vmware.vim25.mo.ServiceInstance;
import com.vmware.vim25.mo.Task;
import com.vmware.vim25.mo.VirtualMachine;

/**
 * VMWare action class that deletes a machine.
 *
 * @author <a href="mailto:duncan.doyle@redhat.com">Duncan Doyle</a>
 */
public class DeleteMachineActionCallback extends AbstractVMWareActionCallback<Void> {

	private static final Logger LOGGER = LoggerFactory.getLogger(DeleteMachineActionCallback.class);

	private final String machineName;

	private final boolean async;

	public DeleteMachineActionCallback(String machineName) {
		this(machineName, false);
	}

	public DeleteMachineActionCallback(String machineName, boolean async) {
		super();
		this.machineName = machineName;
		this.async = async;
	}

	@Override
	public Void doInVmware(ServiceInstance serviceInstance) {
		final VirtualMachine vm = VMWareManagedObjectUtils.getVm(serviceInstance, machineName);

		if( vm == null ) throw new IllegalArgumentException("No such VM found:" + machineName);

		if (VMWareMachinePowerState.POWERED_ON.getState().equals(vm.getRuntime().powerState.toString())) {
			LOGGER.warn("NOTICE: Shutting down vm before destroying it");
			new StopMachineActionCallback(machineName, false).doInVmware(serviceInstance);
		}
		runTask(vm);
		return null;
	}

	private void runTask(VirtualMachine vm) {
		Task task;
		try {
			task = vm.destroy_Task();
			if (!async) {
				try {
					task.waitForTask();
				} catch (InterruptedException ie) {
					LOGGER.error("Interrupted while waiting for machine '" + machineName + "' to be destroyed.", ie);
					Thread.currentThread().interrupt();
				}
			}
		} catch (RemoteException re) {
			final String errorMessage = "Remote error while deleting machine: " + machineName;
			LOGGER.error(errorMessage, re);
			throw new IllegalArgumentException(errorMessage, re);
		}
	}
}